U1426-IMPLAUSIBLE TCC SLIP REQUEST SIGNAL RECEIVED

For a complete wiring diagram Refer to Section 8W.

When Monitored:
Ignition on with no PCM/ECM CAN Bus DTCs present.
Set Condition:
When the TCM receives an implausible Torque Converter Clutch slip request (EMCC) from the PCM/ECM.

Possible Causes

FCM/TIPM CAN BUS DTCS PRESENT

ENGINE MODULE DTCS PRESENT

POWERTRAIN CONTROL MODULE

TRANSMISSION CONTROL MODULE

Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - CVT - STANDARD PROCEDURE)

1.CHECK IF THE DTC IS ACTIVE

Is the status Active for this DTC?

Yes

2.CHECK FOR FCM/TIPM CAN BUS DTCS

Are there any FCM/TIPM CAN BUS DTCs present?

Yes

3.CHECK IF ENGINE DTCS ARE PRESENT

Are there any engine DTCs present?

Yes

4.CHECK THE PCM

Using the schematics as a guide, check the Transmission Control Module (TCM) pins, terminals, and connectors for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the TCM per the Service Information. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/TRANSMISSION CONTROL MODULE - REMOVAL)
Perform CVT VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - CVT - STANDARD PROCEDURE)

5.INTERMITTENT WIRING AND CONNECTORS

Were there any problems found?

Yes